CVE-2025-8799 Open5GS AMF npcf-build.c amf_nsmf_pdusession_build_create_sm_context denial of service
Remote attackers can cause a denial of service in Open5GS AMF by exploiting a flaw in session context building functions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-8799?
CVE-2025-8799 is a medium-severity denial of service vulnerability in Open5gs Open5gs, published on 10 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was identified in Open5GS up to 2.7.5. Affected by this vulnerability is the function amf_npcf_am_policy_control_build_create/amf_nsmf_pdusession_build_create_sm_context of the file src/amf/npcf-build.c of the component AMF. The manipulation leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.7.6 is able to address this issue. The patch is named cf63dd63197bf61a4b041aa364ba6a6199ab15e4. It is recommended to upgrade the affected component.
Weakness: CWE-404
Which versions are affected by CVE-2025-8799?
It affects 1 product.
Products include Open5gs Open5gs.
How do I fix CVE-2025-8799?
No fix has been published for CVE-2025-8799 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-8799 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8799 exists.
Other vulnerabilities in Open5gs Open5gs
Sources
Also known as GHSA-7j5r-32w3-whxq.